Many here have said that she was suing just to get money, and that is likely true.
However, as a woman in tech I can tell you that even though this lawsuit might have been a scam, it doesn't mean that there is no discrimination out there.
There's a lot of comments here saying that the pay gap is only due to women going out of the workforce during their child-bearing years. It is not just that. Sure, women that go on maternity leave may "lose time" and thus be paid less than their colleagues that didn't, but that's not the only reason. Men are promoted on expectations, whereas women are promoted on acomplishments. This means that a woman needs to go do more and prove herself more than a man in order to get the same promotion.
Several studies have shown that when faced with the SAME RESUME changing the name from a female to a male one will raise the intended salary. When faced with the same performance review, changing the name to male will raise the overall score and the monetary bonus. The gender of the person selecting the salary or bonus is irrelevant, women and men equally discriminate against women.
Some comments mentioned women not studying CS because they weren't interested or similar stuff. Sure, some women might not be interested. But a lot of women leave the tech industry every year, at all the stages (students, graduates, employees, managers, etc) due to the constant pressure to prove that they actually belong there. It's in the small stuff that accumulates over time, like a female conference attendee (or even speaker) being taken to be someone's girlfriend, a female programmer getting handed all the admin work for the team, a female engineer being told that she would understand a certain solution to a problem because it's too complex. It's in larger things like a new hire being told by her peers that she only got hired because she's a woman, in promotion processes that require assertiveness (a trait that most women find hard) even though the job itself doesn't call for that, and a culture that values hours in front of the monitor over actual results (in general, women value their free time more, and they will work harder in order to leave early, but this is not something the tech industry in general appreciates).
And all of this is without mentioning harassment. There's a lot of harassment towards women in the tech industry. And not only sexual harassment (of which there is plenty and hopefully you don't need examples of this), there's also plain anti-women harassment, i.e. people telling it to your face that you are not good enough because you are a woman, managers refusing to give their female employees big projects because they don't believe them capable, thus making them unable to prove that they are... And to top it all there's the GamerGate.
Most women leave quietly, there's plenty of those. For the few that don't, there's thousands of male voices eager to shut them down, claiming over and over that they are exaggerating or directly lying, and then threatening to swat them, rape them, kill them... No wonder most choose the silent path.
So, please, even if we agree that this suit was absurd and just a grab to get money, do not take this to mean that there is no discrimination. There is. A lot of it. And the vast majority of those discriminated just take it silently because they know that it's the safest route. And it will still be until we as a society do something to change this.